Originally Posted by tylerdan
To Call Worms, cup your hand over the top of the notched PVC and hold it firming to the ground in an almost vertical position. Hold the short PVC horizontally in the other hand and rub it rapidly and firmly up and down the notched PVC. This creates a lot of vibration into the ground, making the worms come to the surface. Sorry, no action picture because I am here by myself and it takes both hands to operate the Worm Caller.
The key to this working is (1) there have to be worms where you are calling and (2) they have to be close to the surface. If the ground is dry or cold, the worms will be deep and will not come up.